From: Marc Zyngier <maz@kernel.org>
To: Harry Song <jundongsong1@gmail.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>,
tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] irqchip/gic-v3-its: remove the shareability of ITS
Date: Fri, 09 Dec 2022 11:13:26 +0000 [thread overview]
Message-ID: <86fsdorfs9.wl-maz@kernel.org> (raw)
In-Reply-To: <CAJqh2TJvkk5o+MkET8UED-8AUhsDdehvsnR2+7bfeRoY7AmPdQ@mail.gmail.com>
On Fri, 09 Dec 2022 03:34:21 +0000,
Harry Song <jundongsong1@gmail.com> wrote:
>
> Thank you for your reply. I know these two links.
> My email is to ask about the root cause of this bug.
>
> I would like to know whether the driver design of ITS requires that
> the CPU and ITS must be in a shared domain. Such as using CCI in
> chips;
This problem has nothing to do with CCI or coherency. It has to do
with how the GIC is plugged in the interconnect and what attributes it
advertises.
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2022-12-09 11:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 13:52 [PATCH] irqchip/gic-v3-its: remove the shareability of ITS Harry Song
2022-12-07 15:19 ` Marc Zyngier
2022-12-08 2:28 ` Harry Song
2022-12-08 16:58 ` Sebastian Reichel
2022-12-09 3:34 ` Harry Song
2022-12-09 11:13 ` Marc Zyngier [this message]
2022-12-09 13:37 ` Harry Song
2023-02-13 7:30 ` Harry Song
2023-02-13 8:35 ` Marc Zyngier
2022-12-09 11:27 ` Marc Zyngier
2022-12-09 11:10 ` Marc Zyngier
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